document.querySelectorAll('.some-class').forEach(item => {
属于input属性item.addEventListener('click', event => {
//handle click
})
})
具体例⼦如下:
1<!DOCTYPE html>
2<html lang="en">
3<head>
4<meta charset="UTF-8">
5<link rel="stylesheet" href="cdn.jsdelivr/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css"
6 integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
7<title>Document</title>
8</head>
9<body>
10
11<div class="form_group">
12<div class="form_group_radio" id="radio_div1">
13<input type = "radio" name = "optionRadio" id = "optionsRadios1" value = "option1" checked>题⽬
14<input type = "radio" name = "optionRadio" id = "optionsRadios2" value = "option2">答案
15</div>
16<div class="form_group_input">
17<input type="text" name="input_box1" id="input_row1" class="form-control" maxlength="10" >
18</div>
19</div>
20
21<div class="form_group">
22<div class="form_group_radio">
23<input type = "radio" name = "optionRadio1" id = "optionsRadios3" value = "option1" checked>题⽬
24<input type = "radio" name = "optionRadio1" id = "optionsRadios4" value = "option2">答案
25</div>
26<div class="form_group_input">
27<input type="text" name="input_box2" id="input_row2" class="form-control" maxlength="10" >
28</div>
29</div>
30<script>
31
32// document.querySelectorAll("input[type='radio']")是获取⽹页上所有type属性为radio的input元素
33 document.querySelectorAll("input[type='radio']").forEach(item=>{
34 item.addEventListener('click', event=>{
35 console.log(event.target.value);
36if (event.target.value == "option1") {
37 alert("option1");
38 } else {
39 alert("option2");
40 }
41 })
42 })
43</script>
44</body>
45</html>
结果如下图所⽰:
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